Barrel-bung



E- H. SHELLEY.

BARREL B APPLICATION FILED .-v 81 I919- 1,33 1,083 Patented Feb. 17 1920.

| i -TI w immnllllllllm INVENTOR ATTORNEY EDWARD H. SHELLEY, OF RIDGEWOOD, NEW JERSEY.

BARREL-BUN'G.

Application filed. February 28, 1919.

To all whom it may concern Be it known that I, EDWARD H. SHELLEY, a citizen of the United States, residing at Ridgewood, Bergen (30., New Jersey, haye invented new and useful Improvements in Barrel-Brings, of which the following is a specification.

My invention relates to a bung for 010s ing and sealing the bung holes of receptacles such as barrels, casks, and the like, and

it has for an object the provision of a metallic bung for wooden barrels which utilizes the walls of the bung hole to permanently secure the bung therein, thus eliminating, the use of bushings or other additional means, and thereby producing a bung which is cheap, and easily and quickly applied to the bung hole.

A more specific, object of the invention is the provision of a bung formed of aductile metal wherein the bottom of the bung is of c0ncav0-convex formation to permit the adjacent portions of the side walls to be flexed outwardly to engage the inner edge of the bung hole, while at the same time the concavity of the bottom not only reinforces the bung, but utilizes the pressure of the contents of the barrel to force the bung into more intimate contact with the inner edge of the bung hole.

I will describe one form of my invention,

and will then point out the novel features thereof in claims.

In the accompanying drawings, Figure 1 is a View showing in side elevation and partly in section one form of bung embodying my invention and before the same is applied to the bung hole.

F ig. 2 is a similar view showing the same applied and locked within the bung hole of a barrel.

Referring specifically to the drawings, and particularly to Fig. 1, B designates a ductile metal bung of substantially cupshaped formation, the side walls 10 thereof conver 'ing toward the bottom wall 11 to snugly lit the inclined walls of the usual tapered bung hole H shown in Fig. 2. The upper or outer end of the bung B is formed with an annular flange 12 which is arranged at approximately right angles to the side walls 10 and has its marginal edge inturned as at 13. The bottom wall 11 is concaved to an appreciable degree so as to allow the bending of the side walls 10, at the same Specification of Letters Patent Patented Feb. 17, 1920.

Serial No. 279,785.

time maintaining, in a lesser degree, its concavity when in the final locked position, as shown in Fig. 2.

When the bung B is applied within the bung hole H, as shown in Fig. 2, the flange 12 rests upon the outer marginal edge of the bung hole and thus limit-s the inward movement of the bung within the hole. The bung B is designed so that when in position within a bung hole, its inner end projects a slight distance beyond the inner wall of the barrel.

vVith the bung in applied position, a suit able expansible tool is inserted within the bung and rotated to form simultaneously a plurality of separate and independent annular grooves 14, which in turn form annular beads 15 which embed themselves within the walls of the bung hole. This operation secures the bung in a permanent,

rigid, and fixed position, it being understood that the annular beads 15 coact with corresponding beads '16 formed on the walls of the bung hole as a result of embedding the beads 15 in the walls of the bung hole. By providing a plurality of annular grooves 14;, I eliminate the possibility of the contents of the barrel seeping through the bung hole, as each groove being independent of adjacent grooves, the channels formed by the beads 15 do not communicate with each other and therefore do not provide a continuous channel, as is the case when form ing a spiral groove.

In the present instance, I have shown the bung formed with four grooves 14, the lowermost groove of which is contiguous to the bottom wall 11 and, shown the corresponding head 15 abuts the inner wall of the barrel, thereby forming an at ditional lociing means for preventing displacement of the bung. When forming" this lowermost bead 15, the metal of which the bung is formed stretches to a certain extent owing to the ductile Qualitv of the metal. and in so deing forces the bottom wall 11 outwardly to a small degree, thus reducing its concavity. However, it does not completely destroy its concavity but assumes the shape shown in Fig. 2, so that the pressure exerted by the contents of the barrel is distributed uniformly to the periphery of the wall thereof and directly upon the lowermost head 15. This in turn forces the bead into snug engagement with the inner edge of the bung hole, and thus forms it an additional means for positively maintaining the hung in fixed position.

When the contents of the barrel are required for use, the bottom wall of the bung, is usually pierced, thus destroying the seal and indicating that the contents have been tampered with.

From the foregoing-description taken in conjunction with the accompanying drawi1igs,}it will be-manifest that'I have pr avideda simple and efficient form of bung which may be easily and qulckly secured within the bung hole, and which eliminates the use of additional means for confining the bung within the bung hole.

Although I have herein shown and de- Qscribe'd only one form of bung embodying my. invention, it is to be understood that various changes and modifications may he made herein without departing from the spirit of the invention, and the spirit and scope of the appended claims.

What I. claim is:

'1. A bung comprising a single sheet of ductile metal of cup-shaped formation having a concavo-conveX bottom, and, a rib formed in the side walls of the hung in close proximity to the bottom, the bottom being adapted when pressure is exerted on the convex side thereof, to expand said rib.

2. In combination, a receptacle having a hung hole formed thereln, an integral cupshaped bung of ductile material fitting wherein the bottom wall ofthe bung is of concavo-conveX formation.

l. In combination, a receptacle havlng a hung hole formed therein, a d'uctlle metal bung snugly fitted within said hole, an an- 7 nular flange formed on the open end ofthe bung-wand arranged to limit the inward movement of the bung within the hole, the

inner end of the bung'projecting beyond the inner wall of the receptacle and having its 1 bottom concaved, and a plurality-of circuinferentially extending ribs formed exteriorly ofthebung by outstriking the same after the bung is placed in the bung hole,

one of said ribs being formed on the pro jectii'ig end of the bung and engageable with the inner edge of the walls of the bung hole.

5. A bung, comprising a cup-shaped mem ber formed of a singlesheet of ductile material having the bottom wall thereof of concave-convex formation, and a plurality of complete ribs formedthereon each separate from ad acent rlbs and the innermost V rib, merging into said bottom.

In testimony whereof li'have signed my name to this specification. r EDWARD H. SHELLEY; 

